Stop.



F. A. NOLAN.

STOP. APPLICATION FILED JUNE 2p,1915.'

Patented June 19, 1917.

frern ea.

FRANCIS A. NOLAN, OF ST. PAUL, MINNESOTA.

STOP.

Specification of Letters Patent.

Patented June 19, illlid.

Application filed June 25, 1915. Serial 1x? a. 35,221.

stops which can be applied to sound repro- 10 ducing and analogousmachines for automatlcally setting a brake and stopping the mechanism ata predetermined time.

An object of my invention is to stop the playing of a record of a soundreproducing machine immediately when a predetermined point near the endof the sound groove is reached by the stylus or sound box.

A still further object is the production of a device of the kind stated,which can be easily attached to or detached from sound reproducingmachines now in general use without alterin the general construction ofthe machines. @till further objects are simplicity in construction andgreater eliectiveness in use than with devices heretofore designed forthe purposes stated.

To these ends my invention comprises the features of construction andcombination of parts which will be hereinafter more particularlydescribed and set forth in the claims.

In the accompanying drawing forming part of this specification, Figure 1is a plan of my invention; Fig. 2 is a section taken on the line XX,Fig. 1; Fig. 8 is a plan of a sound reproducing machine of the conventional Edison type to which my .vention is shown applied, part of thestructure of the machine being broken away to more clearly expose itsmechanism; Fig. l is a plan of an alternative construction of invention,and Fig. 5 is asection taken on the line YY of Fig. 4:. p

In the drawing A indicates a support or base in'the form of an arm uponone end of which is rotatably mounted by means or shaft 2 a revoluhlespool or turning menr her B, said shaft being riveted or otherwisesecured vertically upon the surface of said arm. The spool B has itsbody or sleeve 3 journsled upon said shaft, and its lower end l is inthe form of a circular plate eccentrically disposed as regards the axisof said "spool and shaft, while its upper end or head 5, which is alsocircular is concentrically disposed as regards said axis. The lower endacts as a striking member, which is adapted to impinge or press againstthe releasing device for the brake to be hereinafter described. strikingmember impinges is regulated or. determined by the position assumedrotatably by the spool on its axis, it being obvious that due to theeccentricity of the striking member on its axis, the time at which theperiphery of the striking member im pinges can be predetermined. To holdthe spool in adjusted position on its axis a re tarding pawl 6 in theform of a spring arm is secured by a screw 7 or other suitable '70 meansin fixed position, the free end of said pawl bein formed with a detentor tooth 8,

which. is adapted to engage with and play 'over the teeth 9,-said teethbeing arranged in series concentrically about theaxis of 76 the spool.The arm of the pawl being of spring material releasably engages by itsdetenture the teeth 9, permitting the spool to be turned by the upperend or head 5, but

retarding the movement of thespool. The edge of the head is knurled at10 to facilitate turning the spool by hand and the surface of sand head15 marked with a suitable scale or dial 11 over which a pointer .12

mounted rigidly upon the shaft 2 indicates to position assumed by thespool when the 1 user is turned on its sup; shaft. in this manner theposition assumed by the eccentric striker or lower end the radial thespool. can he predetermined by said scale so and pointer. The end of thesupporting arm A opposite that on which the spool is l is formed with anopening l3,' which is adapted to fit over revoluble member such as theshaft 14: on a sound reproducing machine, said opening 13 being formedwith'ilattened sides 15, which on gage corresponding flattened surfaces11 the shaft 14-, so that the arm A is swung b'v the turning movement ofthe shaft 1%. loo

arm A may be provided with any suitable means for engagement with amovable part of any mechanism to which'my invention is applicable foruse.

For the purpose of illustrating'the' man- 365 nor in which my inventioncan be used, I

have shown the sameapplied to a conven tional type of Edison soundreproducing machine f. illustrateddn Fig. 3 of the drawiug. amplifyinghorn 17 is mounted upon the vertical revoluble shaft 14 and the soundThe time at which the so in this type of machine, the sound no 115 isinovel in s yncln'onisiu with the movement of the record tohict 'll) aframe resembling qiunlraut '-i l upon the shaft 1% and having a teethwhich mesh with the teeth the threaded teed screw 23 of usual construt-teen. which revolved in the usual.

by the driving mocha -sm not illusin the machine. in this manner the A;is turned in synclnonism with the weinent of the sound box 18 in. theusual. .102, and nu improvef stop coi'ie poorly swing about the axis ofsaid shaft. J ne striker i of the spool is adapted to inn hinge egainetthe freely extending arm of the brake releasing meinl'iet' :55, theperiod when tha sti'ilting member comes into content with the arm 2-1and causes said arm to release: the helm being adjnstably determined, bythe position. assumed hy the spool OtfliiLi'il jv' on the shaft 2. Thehi he releasing incmher which is of usual construction is pii'otullymounted at 26 between its ends with a tooth ni the member is formed n'hiadapted to e; gage in A notch HlW in the hub 29 of the luzzlw. This hubis pi .otull i mounted at it) and can. :1 the izillhfi operable ln'ulcesetting" arm 31 tending outwardly from below the turn table 32 of themachine. encl said huh also the n 9 me usual brake shoe 34, which iemptied, to press when "the brake is releas l against the inner surfaceof the depending fiuugje on ie turn table to stop the turn table fromrcolvii'iglj. A helical spring connecterl bctween the sinus and F11rclccsnbly holds t c tooth 2? engaged in. the notch of the ii hen thesemeniiaei's. {are engegefl the brake hehl out of COHtfiCiZ to the flange21ml the turn table rehut ianmerliutely upon the ecinipiuging or pres. j

end of the 21.1" i ie brake ihle in i i we numbered sc- 1: ta the.length of their 3. mi grooves, .es of the tzahlets and the scale 11 tocorresgnmcl. so that when any Yet i phiceil upon the turn table to owlthe spool it turned upon its 'ici't until the number on theQifllil'lit'lOi'l with the poi er corroih the number on the rccoccltablet, element will cause the tire. .co the invite 51ml stop the turn1: soon :is the record h been g'zieyecl. he conetfliction illustrated inFifi. 51 the equivalent oi the spool element it ted? in Fig. 1 is;sunpliiiefl eiuule (Ml the l tnhlem one.

the pointer l) within an opei'iing opposite that on which the pointer 42is toIfDlGd is secuilr if idly by a screw 16 to the main supporting armA, While the end portion of the arm 4% on which the pointer 42 is formedis secured below the heecl of the screw e1. which revolnhly fastens theeccentric 42.0 on the arm A. The eccentric 40 has impressed or otherwisemarked upon its surface a dial, or scale 4?, concentric with t e a ie ofsaid eccentric and Within this linl i nm n'essed o1" otherwise formed a.concentric series of teeth 48. The pointer 42 cooperates with the i111and indicates in the some manner as in the construction illustrated inl. illltl. 2 the position assumed o the eccentric about its axis, Whilethe spring pawl 43 .s 1 opted to releasaoly engzi with the teeth 48 tohold the eccentric in any adjusted position assumed. The outer edge 4i?)of the eccentric may he knurled. to facilitate turning 01". theeccentric by hand in mlj ustin r it in position about its axis. The tin:of the siuipoi'ting meinliei A opposite the t on which the eccentric ismounted is formed with an opening 13 si .iilar to that illustrated in.Figs. and 2 for mounting the supporting member on Lil. shaft 14: but Icontemplate providing any suitable means in place of the opening 13 forsecuring? the supporting member on any suitable (reopen l the end ofthis arm I Ming element with which my invei'ition can best embodimenttherec v l we it understood that the construction in, 1 hot ii shown isonly illus'lxqtive. anti that the ire vention can he can: .11 out tiyother means anal. applied to uses other than those above set forthWithin the scope of the following claims.

Having desci'ihe my invention. What I claim as new and :lesire toprotect Letters The combine'ion in a. ound ceproi'iuclug machine houreienient. a. turn teiole 2116. hrs, ieoiszn if '"irevent the tablerei'oin 7 of F ise secured to said traveling e temen'c. ievoluhlymounted upon s?' use and ziclai'itetl. for covpoiwition witl's. S? hmkemechanism to i he setting to-reof, the position (GT1 ic choc; its EtlSiSpro euro incite and eccentric means for retarding the to t otting;TQOVEDIH i said eccentri on ease a scale (11.73 m Kl. about he seicieccentric and a pointer cooperating with Bid scale to indicate therelative position assumed by said eocenti'io about its axis.

2. The combination in a sound reproducing machine having a ti'm'elingelement, a turn table and brake mechanism to prevent the table revoii'inf, of a base removably secured to said tz'aveiing element, a spool hawing an eccentric lower end revoiubiy jourmiss on said base, the upperend 01"- said snooi forming a hand operable turning xnenioor :ii'etai'cier associated with said so oontrio for hoiding the spool afterit is turned into :icij USt-Gd position, and a dial and poiniei' theupper end of said spool for pl'eietermining the ndjusnient of saidsocentric 3. The combination in o soumi reproduo ing machine having atraveling element, a turn table and brake mechanism :0 prevent she tablerevolving, of a base support for attachment to said traveling element, aspool revoiuhie about its axis on 91161 support, the

lower end of said spooiiheingwan eccentric and its upper end a handopemhieturning member, means associated with said spool for hoiciing theeccentric after it has been turned into adjust-ed position, and a dialand pointer associated with said spool for said t-mVeiinelement, aneocenhrio revoiw' ole about its axis on sai support having a.

hsnci operable member thereon for turning saici eeoentz'io into adjustedposition, a reaarder for holding said eccentric after ithas been turnedinto adjussed position, and a nstmeni', of soul eccentric.

In testimony whereof, I have signed my name to this specification. I

FRANGIS A NQLAN.

dial and nointer for oredetermining the 1161-

